Alert archive / Arkansas / Flash Flood Warnings in 2023

Flash Flood Warning 45, NWS Little Rock, AR

March 16, 2023Polk County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Mar 16, 2023, 8:07 PM CDT for Polk County, Arkansas. It was in force for 104 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 16, 2023, 8:07 PM CDT (01:07 UTC)
Expired
Mar 16, 2023, 9:51 PM CDT
In force
104 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

County Polk County, AR

The radar

The Western Arkansas radar (KSRX), 90 km from the middle of the area, began a volume at 01:06 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.1 hours before the alert went out and 227 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2023-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 41 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2023-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 441 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
41 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
602 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
441 m²/s²
0-3 km storm-relative helicity
591 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 16, 7:35 PM CDTSpecial Weather StatementLZKPolk40 min
Mar 16, 8:17 PM CDTSpecial Weather StatementLZKMontgomery, Yell43 min
Mar 16, 8:20 PM CDTSpecial Weather StatementLZKGarland40 min
Mar 16, 8:59 PM CDTSpecial Weather StatementLZKClark, Pike46 min
Mar 16, 9:09 PM CDTSpecial Weather StatementLZKGarland, Hot Spring, Saline51 min
Mar 17, 3:07 AM CDTFreeze WarningLZKBaxter, Boone, Cleburne, Conway, Faulkner, Fulton and 21 more30 hr
Mar 17, 3:07 AM CDTFreeze WarningLZKArkansas, Baxter, Boone, Bradley, Calhoun, Clark and 41 more54 hr
Mar 17, 9:28 AM CDTRiver Flood WarningLZKClark, Hot Spring22 hr

Nearby

Flash Flood Warnings in Arkansas, 2023Every flash flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.